Another suggestion for the music. You know how in Browse Shared Music it has Play/Stop/Download? I suggest an additional button that has [Repeat]. Clicking repeat allows you to listen to the midi on repeat until you choose to stop it. This is mostly for midis that come from video games that are say 30-60 seconds long or just sound better when looped (If you are familiar with video game music, you'll note that they usually end on the V if they're meant to be looped, so they never "truly" cadence)

I assume a follow-up question would be to ask if it should apply to "Play Now" and frankly, I say no. We already have to click yes or no when someone plays a midi, to offer another "Would you like it to repeat" seems silly for two reasons. 1. If you've never heard it before, you probably don't want to repeat it until you know you like it. 2. I am in favour of "one click" interfaces. Adding another box to click just seems annoying.